Back massager or similar article



FIG. 1 is a perspective view of a back massager or similar article showing my new design.

FIG. 2 is a front elevational view thereof; the side opposite being a mirror image thereof.

FIG. 3 is a top plan view thereof.

FIG. 4 is a bottom plan view thereof.

FIG. 5 is a right elevational view thereof; the side opposite being a mirror image thereof. 

The ornamental design for a back massager or similar article, as shown and described. 